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Eduardwww [97]
3 years ago
13

PLZ HELP!! WILL MAKE BRAINLIEST!!!​

Mathematics
1 answer:
guapka [62]3 years ago
8 0

Answer:

formula is 6a²= surface area

but since one side is not being painted it is

5a²= surface area

5(3.2)²

=51.2cm

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5. Find cos theta if sin theta= -12/13<br> and tan theta &gt; 0. (6 points)
ziro4ka [17]

\text{Given that,}\\\\\sin \theta = -\dfrac{12}{13}\\\\\implies \sin^2 \theta = \dfrac{144}{169}\\\\\implies 1- \cos^2 \theta = \dfrac{144}{169}\\\\\implies \cos^2 \theta = 1- \dfrac{144}{169}\\\\\implies \cos^2 \theta = \dfrac{25}{169}\\\\\implies \cos \theta = \pm \sqrt{\dfrac{25}{169}} = \pm \dfrac 5{13}\\\\\\\text{Since,}~ \tan \theta >0,\\\\\cos \theta =- \dfrac{5}{13}

8 0
2 years ago
33. The number of batches of cookies that can be made in a bakery every hour is shown in the graph.
MAVERICK [17]
The equation of this line in slope intercept form is y= 3/7x

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2 years ago
If the level of significance (alpha) is 0.05, it means that the probability of rejecting the null hypothesis, when it is false,
Kaylis [27]

Answer: The probability of rejecting the null hypothesis, when it is true, is 5%.

Step-by-step explanation:

We know that the level of significance ( denoted as \alpha ) is generally the probability of rejecting the null hypothesis when it is true.

Therefore , If the level of significance (\alpha[/tex] ) 0.05, then it means that it is the probability of rejecting the null hypothesis when it is true.

i.e. The probability of rejecting the null hypothesis when it is true= 0.05

In percent : 0.05=5\%

Hence, the correct option is : The probability of rejecting the null hypothesis when it is true is 5%.

4 0
3 years ago
What number must you add to complete the square? x2 + 14x = -5
ale4655 [162]
None of them will get into a negative number. When you have like "2x" is the number twice, right? Some number has to be negative
3 0
3 years ago
Read 2 more answers
w Wo Shoes With so much to explore in every city, Debbie needs to purchase a new pair of comfy and supportive walking shoes The
MArishka [77]

Answer:

$47.988-$47.99

Step-by-step explanation:

20/100=0.20

39.99x0.20=7.998

39.99+7.998=47.988

6 0
2 years ago
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